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1. Correction to: A nonsynonymous mutation in PLCG2 reduces the risk of Alzheimer’s disease, dementia with Lewy bodies and frontotemporal dementia, and increases the likelihood of longevity

Author

van der Lee, Sven J, Conway, Olivia J, Zettergren, Anna, Christensen, Kaare, Ertekin-Taner, Nilüfer, Scholz, Sonja W, Ramirez, Alfredo, Ruiz, Agustín, Slagboom, Eline, van der Flier, Wiesje M, Holstege, Henne, Mead, S., Synofzik, M., Andlauer, Till F M, van Swieten, J. C., Leber, I., Ferrari, R., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Diez-Fairen, Monica, Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Simon-Sanchez, Javier, Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Blesa, R., Landqvist Waldö, M., Lleó, Alberto, Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G-Y R, Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Griffiths, T. D., McKeith, I. G., Zetterberg, Henrik, Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Razquin, C., Ortega-Cubero, S., Alonso, E., Nygaard, Marianne, Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rainero, I., Rubino, E., Pinessi, L., Rogaeva, E., St George-Hyslop, P., Rossi, G., Blauwendraat, Cornelis, Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., Savage, Jeanne E, van der Zee, J., Van Broeckhoven, C., Cappa, S. F., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Mengel-From, Jonas, Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Jansen, Iris, Moreno-Grau, Sonia, Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Wagner, Michael, Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Baker, M., Josephs, K. A., Fortea, Juan, Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., Dopper, E. G. P., Seelaar, H., Logroscino, G., Capozzo, R., Novelli, V., Keogh, Michael J, Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H-H, Graff, C., Pasquier, F., Rollin, A., Blennow, Kaj, Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A. B., Hardy, J., Momeni, P., Coppola, G., Skoog, Ingmar, Varpetian, A., Foroud, T. M., Levey, A. I., Kukull, W. A., Mendez, M. F., Ringman, J., Chui, H., Cotman, C., DeCarli, C., Friese, Manuel A, Geschwind, D. H., Pletnikova, Olga, Zulaica, Miren, Lage, Carmen, Carrasquillo, Minerva M, de Rojas, Itziar, Riedel-Heller, Steffi, Illán-Gala, Ignacio, Wei, Wei, Jeune, Bernard, Orellana, Adelina, Then Bergh, Florian, Wang, Xue, Hulsman, Marc, Beker, Nina, Kleineidam, Luca, Tesi, Niccolo, Morris, Christopher M, Indakoetxea, Begoña, Collij, Lyduine E, Scherer, Martin, Morenas-Rodríguez, Estrella, Ironside, James W, van Berckel, Bart N M, Alcolea, Daniel, Wiendl, Heinz, van den Akker, Erik, Strickland, Samantha L, Pastor, Pau, Rodríguez Rodríguez, Eloy, DESGESCO, EADB, IFGC, IPDGC, RiMod-FTD, Bank, Netherlands Brain, Boeve, Bradley F, Hernández, Isabel, Petersen, Ronald C, Ferman, Tanis J, van Gerpen, Jay A, Reinders, Marcel J T, Uitti, Ryan J, Tárraga, Lluís, Maier, Wolfgang, Dols-Icardo, Oriol, Kawalia, Amit, Dalmasso, Maria Carolina, van Eijk, Kristel R, Boada, Mercè, Zettl, Uwe K, van Schoor, Natasja M, Beekman, Marian, Allen, Mariet, Masliah, Eliezer, de Munain, Adolfo López, Pantelyat, Alexander, Wszolek, Zbigniew K, Ross, Owen A, Stringa, Najada, Dickson, Dennis W, Graff-Radford, Neill R, Knopman, David, Rademakers, Rosa, Lemstra, Afina W, Pijnenburg, Yolande A L, Scheltens, Philip, Gasser, Thomas, Chinnery, Patrick F, Hemmer, Bernhard, Chen, Jason A, Huisman, Martijn A, Troncoso, Juan, Moreno, Fermin, Nohr, Ellen A, Sørensen, Thorkild I A, Heutink, Peter, Sánchez-Juan, Pascual, Posthuma, Danielle, GIFT, and Clarimón, Jordi

Subjects
0301 basic medicine, Dementia with Lewy bodies, Disease, Bioinformatics, Neurodegenerative disease, 0302 clinical medicine, Missense mutation, media_common, 2. Zero hunger, Longevity, Brain, Parkinson Disease, Phospholipase C Gamma 2, Biobank, 3. Good health, ddc, Frontotemporal Dementia, Microglia, Alzheimer's disease, Alzheimer’s disease, Amyotrophic lateral sclerosis, Frontotemporal dementia, Multiple sclerosis, PLCG2, Parkinson’s disease, Progressive supranuclear palsy, Lewy Body Disease, Risk, Multiple Sclerosis, media_common.quotation_subject, education, Neuroimaging, Genomics, Pathology and Forensic Medicine, 03 medical and health sciences, Cellular and Molecular Neuroscience, SDG 3 - Good Health and Well-being, Alzheimer Disease, medicine, Humans, Genetic Predisposition to Disease, ddc:610, Alleles, Phospholipase C gamma, business.industry, Amyotrophic Lateral Sclerosis, Correction, medicine.disease, 030104 developmental biology, Mutation, Dementia, Neurology (clinical), business, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract

The genetic variant rs72824905-G (minor allele) in the PLCG2 gene was previously associated with a reduced Alzheimer's disease risk (AD). The role of PLCG2 in immune system signaling suggests it may also protect against other neurodegenerative diseases and possibly associates with longevity. We studied the effect of the rs72824905-G on seven neurodegenerative diseases and longevity, using 53,627 patients, 3,516 long-lived individuals and 149,290 study-matched controls. We replicated the association of rs72824905-G with reduced AD risk and we found an association with reduced risk of dementia with Lewy bodies (DLB) and frontotemporal dementia (FTD). We did not find evidence for an effect on Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) risks, despite adequate sample sizes. Conversely, the rs72824905-G allele was associated with increased likelihood of longevity. By-proxy analyses in the UK Biobank supported the associations with both dementia and longevity. Concluding, rs72824905-G has a protective effect against multiple neurodegenerative diseases indicating shared aspects of disease etiology. Our findings merit studying the PLCγ2 pathway as drug-target. The genetic variant rs72824905-G (minor allele) in the PLCG2 gene was previously associated with a reduced Alzheimer's disease risk (AD). The role of PLCG2 in immune system signaling suggests it may also protect against other neurodegenerative diseases and possibly associates with longevity. We studied the effect of the rs72824905-G on seven neurodegenerative diseases and longevity, using 53,627 patients, 3,516 long-lived individuals and 149,290 study-matched controls. We replicated the association of rs72824905-G with reduced AD risk and we found an association with reduced risk of dementia with Lewy bodies (DLB) and frontotemporal dementia (FTD). We did not find evidence for an effect on Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) risks, despite adequate sample sizes. Conversely, the rs72824905-G allele was associated with increased likelihood of longevity. By-proxy analyses in the UK Biobank supported the associations with both dementia and longevity. Concluding, rs72824905-G has a protective effect against multiple neurodegenerative diseases indicating shared aspects of disease etiology. Our findings merit studying the PLCγ2 pathway as drug-target.

Published
2019

2. CXCR4involvement in neurodegenerative diseases

Author

Bonham, Luke W, Karch, Celeste M, Ferrari, Raffaele, Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., van der Zee, J., Cruts, M., Van Broeckhoven, C., Cappa, S. F., Leber, I., Hannequin, D., Hardy, John, Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Momeni, Parastoo, Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Höglinger, Günter, Rizzu, P., Heutink, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Müller, Ulrich, Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Rademakers, R., Baker, M., Dickson, D. W., Graff-Radford, N. R., Petersen, R. C., Hess, Christopher P, Knopman, D., Josephs, K. A., Boeve, B. F., Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., van Swieten, J. C., Dopper, E. G. P., Sugrue, Leo P, Seelaar, H., Pijnenburg, Y. A. L., Scheltens, P., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Dillon, William P, Sorrentino, P., Kristiansen, M., Chiang, H-H, Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Schellenberg, Gerard D, Pickering-Brown, S., Singleton, A. B., Hardy, J., Momeni, P., Miller, Bruce L, Fan, Chun C, Andreassen, Ole A, Dale, Anders M, Barkovich, A James, Yokoyama, Jennifer S, Desikan, Rahul S, Consortium, International FTD-Genomics, Consortium, International Parkinson’s Disease Genetics, Project, International Genomics of Alzheimer’s, Ferrari, R., Hernandez, D. G., Tan, Chin, Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Geier, Ethan G, Thompson, E., Haan, E., Hernández, I., Ruiz, A., Boada, M., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Wang, Yunpeng, Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Clarimón, J., Lleó, A., Wen, Natalie, Blesa, R., Waldö, M Landqvist, Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G-Y R, Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Broce, Iris J, Griffiths, T. D., McKeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Pastor, P., Li, Yi, Razquin, C., Ortega-Cubero, S., Alonso, E., Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rainero, I., Rubino, E., Pinessi, L., Barkovich, Matthew J, Rogaeva, E., George-Hyslop, P St, Rossi, G., Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Mead, S., Bonham, Luke W., Karch, Celeste M., Fan, Chun C., Tan, Chin, Geier, Ethan G., Wang, Yunpeng, Wen, Natalie, Broce, Iris J., Li, Yi, Barkovich, Matthew J., Ferrari, Raffaele, Hardy, John, Momeni, Parastoo, Höglinger, Günter, Müller, Ulrich, Hess, Christopher P., Sugrue, Leo P., Dillon, William P., Schellenberg, Gerard D., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Barkovich, A. Jame, Yokoyama, Jennifer S., Desikan, Rahul S., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Haan, E., Hernández, I., Ruiz, A., Boada, M., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Clarimón, J., Lleó, A., Blesa, R., Waldö, M. Landqvist., Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G. -Y. R., Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Griffiths, T. D., Mckeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Pastor, P., Razquin, C., Ortega-Cubero, S., Alonso, E., Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rainero, I., Rubino, E., Pinessi, L., Rogaeva, E., George-Hyslop, P. St., Rossi, G., Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Mead, S., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., Van Der Zee, J., Cruts, M., Van Broeckhoven, C., Cappa, S. F., Leber, I., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Heutink, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Rademakers, R., Baker, M., Dickson, D. W., Graff-Radford, N. R., Petersen, R. C., Knopman, D., Josephs, K. A., Boeve, B. F., Parisi, J. E., Seeley, W. W., Karydas, A. M., Rosen, H., Van Swieten, J. C., Dopper, E. G. P., Seelaar, H., Pijnenburg, Y. A. L., Scheltens, P., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H. -H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A. B., Rademakers, Rosa, International FTD-Genomics Consortium (IFGC), International Parkinsons Disease Genetics Consortium (IPDGC), and International Genomics of Alzheimers Project (IGAP)

Subjects
0301 basic medicine, Aging, Gene Expression, Genome-wide association study, metabolism [Microglia], Neurodegenerative, Bioinformatics, Alzheimer's Disease, Transgenic, Mice, 0302 clinical medicine, Risk Factors, Receptors, 2.1 Biological and endogenous factors, Psychology, Gene Regulatory Networks, Aetiology, Alzheimer's Disease Related Dementias (ADRD), 0303 health sciences, Gene Regulatory Network, Parkinson's Disease, International Genomics of Alzheimer’s Project, Neurodegeneration, Brain, Neurodegenerative Diseases, Single Nucleotide, International Parkinson’s Disease Genetics Consortium, Frontotemporal Dementia (FTD), Psychiatry and Mental Health, Neurological, Public Health and Health Services, Tauopathy, Microglia, Frontotemporal dementia, Human, Receptors, CXCR4, Tau protein, Clinical Sciences, Mice, Transgenic, Computational biology, Biology, Polymorphism, Single Nucleotide, Article, CXCR4 protein, human, Progressive supranuclear palsy, lcsh:RC321-571, Cellular and Molecular Neuroscience, 03 medical and health sciences, Rare Diseases, Text mining, Genetic predisposition, medicine, Genetics, Acquired Cognitive Impairment, Animals, Humans, Genetic Predisposition to Disease, ddc:610, Polymorphism, lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry, Biological Psychiatry, 030304 developmental biology, CXCR4, Neurodegenerative Disease, Animal, business.industry, Risk Factor, International FTD-Genomics Consortium, Neurosciences, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), medicine.disease, genetics [Receptors, CXCR4], Brain Disorders, Genome-Wide Association Study, 030104 developmental biology, metabolism [Brain], genetics [Neurodegenerative Diseases], Expression quantitative trait loci, biology.protein, Dementia, Human medicine, metabolism [Receptors, CXCR4], business, 030217 neurology & neurosurgery
Abstract

Neurodegenerative diseases likely share common underlying pathobiology. Although prior work has identified susceptibility loci associated with various dementias, few, if any, studies have systematically evaluated shared genetic risk across several neurodegenerative diseases. Using genome-wide association data from large studies (total n = 82,337 cases and controls), we utilized a previously validated approach to identify genetic overlap and reveal common pathways between progressive supranuclear palsy (PSP), frontotemporal dementia (FTD), Parkinson’s disease (PD) and Alzheimer’s disease (AD). In addition to the MAPT H1 haplotype, we identified a variant near the chemokine receptor CXCR4 that was jointly associated with increased risk for PSP and PD. Using bioinformatics tools, we found strong physical interactions between CXCR4 and four microglia related genes, namely CXCL12, TLR2, RALB, and CCR5. Evaluating gene expression from post-mortem brain tissue, we found that expression of CXCR4 and microglial genes functionally related to CXCR4 was dysregulated across a number of neurodegenerative diseases. Furthermore, in a mouse model of tauopathy, expression of CXCR4 and functionally associated genes was significantly altered in regions of the mouse brain that accumulate neurofibrillary tangles most robustly. Beyond MAPT, we show dysregulation of CXCR4 expression in PSP, PD, and FTD brains, and mouse models of tau pathology. Our multi-modal findings suggest that abnormal signaling across a ‘network’ of microglial genes may contribute to neurodegeneration and may have potential implications for clinical trials targeting immune dysfunction in patients with neurodegenerative diseases.

Published
2017

3. CXCR4 involvement in neurodegenerative diseases

Author

Bonham, LW, Karch, CM, Fan, CC, Tan, C, Geier, EG, Wang, Y, Wen, N, Broce, IJ, Li, Y, Barkovich, MJ, Ferrari, R, Hardy, J, Momeni, P, Höglinger, G, Müller, U, Hess, CP, Sugrue, LP, Dillon, WP, Schellenberg, GD, Miller, BL, Andreassen, OA, Dale, AM, Barkovich, AJ, Yokoyama, JS, Desikan, RS, Hernandez, DG, Nalls, MA, Rohrer, JD, Ramasamy, A, Kwok, JBJ, Dobson-Stone, C, Schofield, PR, Halliday, GM, Hodges, JR, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, NJ, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, ML, Nilsson, K, Nilsson, C, MacKenzie, IRA, Hsiung, GYR, Mann, DMA, Grafman, J, Morris, CM, Attems, J, Griffiths, TD, McKeith, IG, Thomas, AJ, Pietrini, P, Huey, ED, Wassermann, EM, Baborie, A, Jaros, E, Tierney, MC, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, George-Hyslop, PS, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, JB, Schlachetzki, JCM, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, VM, Rowe, James [0000-0001-7216-8679], and Apollo - University of Cambridge Repository

Subjects
Receptors, CXCR4, Risk Factors, Animals, Brain, Gene Expression, Humans, Gene Regulatory Networks, Genetic Predisposition to Disease, Mice, Transgenic, Neurodegenerative Diseases, Microglia, Polymorphism, Single Nucleotide, Genome-Wide Association Study
Abstract

© 2017 The Author(s). Neurodegenerative diseases likely share common underlying pathobiology. Although prior work has identified susceptibility loci associated with various dementias, few, if any, studies have systematically evaluated shared genetic risk across several neurodegenerative diseases. Using genome-wide association data from large studies (total n = 82,337 cases and controls), we utilized a previously validated approach to identify genetic overlap and reveal common pathways between progressive supranuclear palsy (PSP), frontotemporal dementia (FTD), Parkinson's disease (PD) and Alzheimer's disease (AD). In addition to the MAPT H1 haplotype, we identified a variant near the chemokine receptor CXCR4 that was jointly associated with increased risk for PSP and PD. Using bioinformatics tools, we found strong physical interactions between CXCR4 and four microglia related genes, namely CXCL12, TLR2, RALB, and CCR5. Evaluating gene expression from post-mortem brain tissue, we found that expression of CXCR4 and microglial genes functionally related to CXCR4 was dysregulated across a number of neurodegenerative diseases. Furthermore, in a mouse model of tauopathy, expression of CXCR4 and functionally associated genes was significantly altered in regions of the mouse brain that accumulate neurofibrillary tangles most robustly. Beyond MAPT, we show dysregulation of CXCR4 expression in PSP, PD, and FTD brains, and mouse models of tau pathology. Our multi-modal findings suggest that abnormal signaling across a 'network' of microglial genes may contribute to neurodegeneration and may have potential implications for clinical trials targeting immune dysfunction in patients with neurodegenerative diseases.

Published
2018
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4. Immune-related genetic enrichment in frontotemporal dementia: An analysis of genome-wide association studies

Author

Broce, Iris, Karch, Celeste M., Wen, Natalie, Fan, Chun C., Wang, Yunpeng, Hong Tan, Chin, Kouri, Naomi, Ross, Owen A., Höglinger, Günter U., Muller, Ulrich, Hardy, John, Momeni, Parastoo, Hess, Christopher P., Dillon, William P., Miller, Zachary A., Bonham, Luke W., Rabinovici, Gil D., Rosen, Howard J., Schellenberg, Gerard D., Franke, Andre, Karlsen, Tom H., Veldink, Jan H., Ferrari, Raffaele, Yokoyama, Jennifer S., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Desikan, Rahul S., Sugrue, Leo P., Ferrari R, Hernandez DG, Nalls MA, Rohrer JD, Ramasamy A, Kwok JBJ, Dobson-Stone C, Brooks WS, Schofield PR, Halliday GM, Hodges JR, Piguet O, Bartley L, Thompson E, Haan E, Hernández I, Ruiz A, Boada M, Borroni B, Padovani A, Cruchaga C, Cairns NJ, Benussi L, Binetti G, Ghidoni R, Forloni G, Galimberti D, Fenoglio C, Serpente M, Scarpini E, Clarimón J, Lleó A, Blesa R, Waldö ML, Nilsson K, Nilsson C, Mackenzie IRA, Hsuing GYR, Mann DMA, Grafman J, Morris CM, Attems J, Griffiths TD, McKeith IG, Thomas AJ, Pietrini P, Huey ED, Wasserman EM, Baborie A, Jaros E, Tierney MC, Pastor P, Razquin C, Ortega-Cubero S, Alonso E, Perneczky E, Diehl-Schmid J, Alexopoulos P, Kurz A, Rainero I, Rubino E, Pinessi L, Rogaeva E, St George-Hyslop P, Rossi G, Tagliavini F, Giaccone G, Rowe JB, Schlachetzki JCM, Uphill J, Collinge J, Mead S, Danek A, Van Deerlin VM, Grossmann M, Trojanowski JQ, van der Zee J, Deschamps W, Van Langenhove T, Cruts M, Van Broeckhoven C, Cappa SF, Le Ber I, Hannequin D, Golfier V, Vercelletto M, Brice A, Nacmias B, Sorbi S, Bagnoli S, Piaceri I, Nielsen JE, Hjermind LE, Riemenschneider M, Mayhaus M, Ibach B, Gasparoni G, Pichler S, Gu W, Rossor MN, Fox NC, Warren JD, Spillantini MG, Morris HR, Rizzu P, Heutnik P, Snowden J, Rollinson S, Richardson A, Gerhard A, Bruni AC, Maletta R, Frangipane F, Cupidi C, Bernardi L, Anfossi M, Gallo M, Conidi ME, Smirne N, Rademakers R, Baker M, Dickson DW, Graff-Radford NR, Peterson RC, Knopman D, Josephs KA, Boeve BF, Parisi JE, Seeley WW, Miller BL, Karydas AM, Rosen H, van Swieten JC, Dopper EGP, Seelaar H, Pijnenburg YAL, Scheltens P, Logroscino G, Capozzo R, Novelli V, Puca AA, Franceschi M, Postiglione A, Milan G, Sorrentino P, Kristiansen M, Chiang HH, Graff C, Pasquier F, Rollin A, Deramecourt V, Lebert F, Kapogiannis D, Ferucci L, Pickering-Brown S, Singleton AB, Hardy J, Momeni P., Broce, Iris [0000-0003-4932-1430], Karch, Celeste M [0000-0002-6854-5547], Wang, Yunpeng [0000-0001-9831-1090], Tan, Chin Hong [0000-0002-0980-9936], Kouri, Naomi [0000-0002-6841-9882], Hess, Christopher P [0000-0002-5132-5302], Miller, Zachary A [0000-0002-5991-3053], Bonham, Luke W [0000-0002-2533-1266], Veldink, Jan H [0000-0001-5572-9657], Dale, Anders M [0000-0002-6126-2966], Desikan, Rahul S [0000-0002-4151-6017], Sugrue, Leo P [0000-0001-7315-4519], Apollo - University of Cambridge Repository, Neurology, Human genetics, Amsterdam Neuroscience - Neurodegeneration, Divisions, Rademakers, Rosa, Int FTD-Genomics Consortium, Broce, Iri, Karch, Celeste M., Wen, Natalie, Fan, Chun C., Wang, Yunpeng, Hong Tan, Chin, Kouri, Naomi, Ross, Owen A., Höglinger, Günter U., Muller, Ulrich, Hardy, John, Momeni, Parastoo, Hess, Christopher P., Dillon, William P., Miller, Zachary A., Bonham, Luke W., Rabinovici, Gil D., Rosen, Howard J., Schellenberg, Gerard D., Franke, Andre, Karlsen, Tom H., Veldink, Jan H., Ferrari, Raffaele, Yokoyama, Jennifer S., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Desikan, Rahul S., Sugrue, Leo P., Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Brooks, W, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ira, Hsuing, Gyr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wasserman, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, E, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, Vm, Grossmann, M, Trojanowski, Jq, van der Zee, J, Deschamps, W, Van Langenhove, T, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Le Ber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutnik, P, Snowden, J, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Peterson, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten, Jc, Dopper, Egp, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebert, F, Kapogiannis, D, Ferucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, and Momeni, P.

Subjects
0301 basic medicine, Linkage disequilibrium, Gene Expression, Genome-wide association study, Neurodegenerative, Medical and Health Sciences, Motor Neuron Diseases, 0302 clinical medicine, Medicine and Health Sciences, 2.1 Biological and endogenous factors, Corticobasal degeneration, genetics [Genetic Predisposition to Disease], genetics [Frontotemporal Dementia], Genetics, Medicine (all), Neurodegenerative Diseases, Single Nucleotide, Genomics, General Medicine, Middle Aged, Colitis, LRRK2, 3. Good health, Neurology, Manchester Institute for Collaborative Research on Ageing, Frontotemporal Dementia, Neurological, Medicine, Research Article, Frontotemporal dementia, ResearchInstitutes_Networks_Beacons/MICRA, Immunology, Rheumatoid Arthritis, Single-nucleotide polymorphism, Gastroenterology and Hepatology, Human leukocyte antigen, Biology, Autoimmune Disease, Polymorphism, Single Nucleotide, Autoimmune Diseases, 03 medical and health sciences, Rare Diseases, Rheumatology, Clinical Research, General & Internal Medicine, FTD GWA, Mental Health and Psychiatry, mental disorders, Acquired Cognitive Impairment, Genome-Wide Association Studies, medicine, Ulcerative Colitis, Humans, Inflammatory and Immune System, Genetic Predisposition to Disease, ddc:610, Polymorphism, Aged, Genetic association, Genome-Wide Association Study, International FTD-Genomics Consortium, Prevention, Arthritis, Human Genome, Inflammatory Bowel Disease, Amyotrophic Lateral Sclerosis, Neurosciences, Correction, Biology and Life Sciences, Computational Biology, nutritional and metabolic diseases, Human Genetics, Genome Analysis, medicine.disease, Brain Disorders, nervous system diseases, 030104 developmental biology, Genetic Loci, Genetics of Disease, Dementia, Clinical Immunology, Human medicine, Clinical Medicine, Digestive Diseases, 030217 neurology & neurosurgery
Abstract

Background Converging evidence suggests that immune-mediated dysfunction plays an important role in the pathogenesis of frontotemporal dementia (FTD). Although genetic studies have shown that immune-associated loci are associated with increased FTD risk, a systematic investigation of genetic overlap between immune-mediated diseases and the spectrum of FTD-related disorders has not been performed. Methods and findings Using large genome-wide association studies (GWASs) (total n = 192,886 cases and controls) and recently developed tools to quantify genetic overlap/pleiotropy, we systematically identified single nucleotide polymorphisms (SNPs) jointly associated with FTD-related disorders—namely, FTD, corticobasal degeneration (CBD), progressive supranuclear palsy (PSP), and amyotrophic lateral sclerosis (ALS)—and 1 or more immune-mediated diseases including Crohn disease, ulcerative colitis (UC), rheumatoid arthritis (RA), type 1 diabetes (T1D), celiac disease (CeD), and psoriasis. We found up to 270-fold genetic enrichment between FTD and RA, up to 160-fold genetic enrichment between FTD and UC, up to 180-fold genetic enrichment between FTD and T1D, and up to 175-fold genetic enrichment between FTD and CeD. In contrast, for CBD and PSP, only 1 of the 6 immune-mediated diseases produced genetic enrichment comparable to that seen for FTD, with up to 150-fold genetic enrichment between CBD and CeD and up to 180-fold enrichment between PSP and RA. Further, we found minimal enrichment between ALS and the immune-mediated diseases tested, with the highest levels of enrichment between ALS and RA (up to 20-fold). For FTD, at a conjunction false discovery rate < 0.05 and after excluding SNPs in linkage disequilibrium, we found that 8 of the 15 identified loci mapped to the human leukocyte antigen (HLA) region on Chromosome (Chr) 6. We also found novel candidate FTD susceptibility loci within LRRK2 (leucine rich repeat kinase 2), TBKBP1 (TBK1 binding protein 1), and PGBD5 (piggyBac transposable element derived 5). Functionally, we found that the expression of FTD–immune pleiotropic genes (particularly within the HLA region) is altered in postmortem brain tissue from patients with FTD and is enriched in microglia/macrophages compared to other central nervous system cell types. The main study limitation is that the results represent only clinically diagnosed individuals. Also, given the complex interconnectedness of the HLA region, we were not able to define the specific gene or genes on Chr 6 responsible for our pleiotropic signal. Conclusions We show immune-mediated genetic enrichment specifically in FTD, particularly within the HLA region. Our genetic results suggest that for a subset of patients, immune dysfunction may contribute to FTD risk. These findings have potential implications for clinical trials targeting immune dysfunction in patients with FTD., Rahul Desikan and colleagues use summary data from genome-wide association studies to investigate genetic overlap between frontotemporal dementia and a several immune-mediated diseases, and identify microglia and inflammation-associated genes that may play a role in FTD pathogenesis., Author summary Why was this study done? Frontotemporal dementia (FTD) is the leading cause of dementia in individuals less than 65 years old. Currently, there is no approved treatment of FTD and no diagnostic tests for predicting disease onset or measuring progression. Increasing evidence suggests that inflammation and immune system dysfunction play an important role in the pathogenesis of FTD. What did the researchers do and find? We used summary data from genome-wide association studies to investigate genetic overlap, or “pleiotropy,” between FTD and a variety of immune-mediated diseases. Through this approach, we found extensive FTD–immune genetic overlap within the HLA region on Chromosome 6, an area rich in genes related to microglial function, as well as in 3 genes not previously identified as contributing to the pathophysiology of FTD. Pointing to the functional relevance of these genetic results, we found that these candidate FTD–immune genes are differentially expressed in postmortem brains from patients with FTD compared to controls, and in microglia/macrophages compared with other central nervous system cells. Using bioinformatics tools, we explored protein and genetic interactions among our candidate FTD–immune genes. These results suggest that rather than a few individual loci, large portions of the HLA region may be associated with increased FTD risk. What do these findings mean? Immune dysfunction may play a role in the pathophysiology of a subset of FTD cases. For a subset of patients in whom immune dysfunction in general—and microglial activation in particular—is central to disease pathophysiology, anti-inflammatory treatment is an important area for further investigation.

Published
2018

5. Susceptible genes and disease mechanisms identified in frontotemporal dementia and frontotemporal dementia with Amyotrophic Lateral Sclerosis by DNA-methylation and GWAS

Author

Taskesen, E, Mishra, A, van der Sluis, S, Ferrari, R, Veldink, Jh, van Es MA4, Smit, Ab5, Posthuma, D1, 2, Hernandez DG, Pijnenburg Y., Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, Roberta, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ira, Hsiung, Gr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, George-Hyslop, Ps, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin VM, Grossman, M, Trojanowski, Jq, van der Zee, J, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, GUNNAR MARKUS, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, Js, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, Lara, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten JC, Dopper, Egp, Seelaar, H, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, Antonio, Milan, Gian Luca, Sorrentino, Paolo Luigi, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, Momeni, P., Rademakers, Rosa, International FTD-Genomics Consortium, Complex Trait Genetics, Amsterdam Neuroscience - Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience - Neurodegeneration, Amsterdam Neuroscience - Cellular & Molecular Mechanisms, Human genetics, APH - Quality of Care, Midwifery Science, Divisions, Neurology, Amsterdam Reproduction & Development (AR&D), Mishra, A [0000-0002-8141-1543], van der Sluis, S [0000-0001-9958-7216], van Es, MA [0000-0002-7709-5883], Posthuma, D [0000-0001-7582-2365], and Apollo - University of Cambridge Repository

Subjects
0301 basic medicine, Candidate gene, Science, Genome-wide association study, Biology, Neurodegenerative, Article, 03 medical and health sciences, 0302 clinical medicine, Rare Diseases, SDG 3 - Good Health and Well-being, mental disorders, medicine, Journal Article, Acquired Cognitive Impairment, Genetics, 2.1 Biological and endogenous factors, Amyotrophic lateral sclerosis, Aetiology, General, Alzheimer's Disease Related Dementias (ADRD), Genetic association, Multidisciplinary, Genetic heterogeneity, International FTD-Genomics Consortium, Neurodegeneration, Human Genome, Neurosciences, nutritional and metabolic diseases, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), medicine.disease, nervous system diseases, Brain Disorders, Frontotemporal Dementia (FTD), 030104 developmental biology, DNA methylation, Neurological, Medicine, Dementia, Human medicine, ALS, 030217 neurology & neurosurgery, Frontotemporal dementia
Abstract

Frontotemporal dementia (FTD) is a neurodegenerative disorder predominantly affecting the frontal and temporal lobes. Genome-wide association studies (GWAS) on FTD identified only a few risk loci. One of the possible explanations is that FTD is clinically, pathologically, and genetically heterogeneous. An important open question is to what extent epigenetic factors contribute to FTD and whether these factors vary between FTD clinical subgroup. We compared the DNA-methylation levels of FTD cases (n = 128), and of FTD cases with Amyotrophic Lateral Sclerosis (FTD-ALS; n = 7) to those of unaffected controls (n = 193), which resulted in 14 and 224 candidate genes, respectively. Cluster analysis revealed significant class separation of FTD-ALS from controls. We could further specify genes with increased susceptibility for abnormal gene-transcript behavior by jointly analyzing DNA-methylation levels with the presence of mutations in a GWAS FTD-cohort. For FTD-ALS, this resulted in 9 potential candidate genes, whereas for FTD we detected 1 candidate gene (ELP2). Independent validation-sets confirmed the genes DLG1, METTL7A, KIAA1147, IGHMBP2, PCNX, UBTD2, WDR35, and ELP2/SLC39A6 among others. We could furthermore demonstrate that genes harboring mutations and/or displaying differential DNA-methylation, are involved in common pathways, and may therefore be critical for neurodegeneration in both FTD and FTD-ALS.

Published
2017

6. Immune-related genetic enrichment in frontotemporal dementia

Author

Broce, Iris, Karch, Celeste M., Wen, Natalie, Fan, Chun C., Wang, Yunpeng, Hong Tan, Chin, Kouri, Naomi, Ross, Owen A., Höglinger, Günter U., Muller, Ulrich, Hardy, John, Momeni, Parastoo, Hess, Christopher P., Dillon, William P., Miller, Zachary A., Bonham, Luke W., Rabinovici, Gil D., Rosen, Howard J., Schellenberg, Gerard D., Franke, Andre, Karlsen, Tom H., Veldink, Jan H., Ferrari, Raffaele, Yokoyama, Jennifer S., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Desikan, Rahul S., Sugrue, Leo P., Ferrari, R, Hernandez, D G, Nalls, M A, Rohrer, J D, Ramasamy, A, Kwok, J B J, Dobson-Stone, C, Schofield, P R, Halliday, G M, Hodges, J R, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, N J, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Landqvist Waldö, M, Nilsson, K, Nilsson, C, Mackenzie, I R A, Hsiung, G-Y R, Mann, D M A, Grafman, J, Morris, C M, Attems, J, Griffiths, T D, McKeith, I G, Thomas, A J, Pietrini, P, Huey, E D, Wassermann, E M, Baborie, A, Jaros, E, Tierney, M C, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, George-Hyslop, P St, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, J B, Schlachetzki, J C M, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, V M, Grossman, M, Trojanowski, J Q, der Zee, J van, Cruts, M, Broeckhoven, C Van, Cappa, S F, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, J E, Hjermind, L E, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, M N, Fox, N C, Warren, J D, Spillantini, M G, Morris, H R, Rizzu, P, Heutink, P, Snowden, J S, Rollinson, S, Richardson, A, Gerhard, A, Bruni, A C, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, M E, Smirne, N, Rademakers, R, Baker, M, Dickson, D W, Graff-Radford, N R, Petersen, R C, Knopman, D, Josephs, K A, Boeve, B F, Parisi, J E, Seeley, W W, Miller, B L, Karydas, A M, Rosen, H, van Swieten, J C, Dopper, E G P, Seelaar, H, Pijnenburg, Y A L, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, A A, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, H-H, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, A B, Hardy, J, and Momeni, P

Subjects
Genetics, 0303 health sciences, business.industry, nutritional and metabolic diseases, Single-nucleotide polymorphism, Genome-wide association study, Disease, medicine.disease, nervous system diseases, 3. Good health, Progressive supranuclear palsy, 03 medical and health sciences, 0302 clinical medicine, mental disorders, Immunology, Medicine, Corticobasal degeneration, Amyotrophic lateral sclerosis, business, 030217 neurology & neurosurgery, 030304 developmental biology, Genetic association, Frontotemporal dementia
Abstract

BackgroundConverging evidence suggests that immune-mediated dysfunction plays an important role in the pathogenesis of frontotemporal dementia (FTD). Although genetic studies have shown that immune-associated loci are associated with increased FTD risk, a systematic investigation of genetic overlap between immune-mediated diseases and the spectrum of FTD-related disorders has not been performed.Methods and findingsUsing large genome-wide association studies (GWAS) (total n = 192,886 cases and controls) and recently developed tools to quantify genetic overlap/pleiotropy, we systematically identified single nucleotide polymorphisms (SNPs)jointlyassociated with ‘FTD-related disorders’ namely FTD, corticobasal degeneration (CBD), progressive supranuclear palsy (PSP), and amyotrophic lateral sclerosis (ALS) – and one or more immune-mediated diseases including Crohn’s disease (CD), ulcerative colitis (UC), rheumatoid arthritis (RA), type 1 diabetes (T1D), celiac disease (CeD), and psoriasis (PSOR). We found up to 270-fold genetic enrichment between FTD and RA and comparable enrichment between FTD and UC, T1D, and CeD. In contrast, we found only modest genetic enrichment between any of the immune-mediated diseases and CBD, PSP or ALS. At a conjunction false discovery rate (FDR) < 0.05, we identified numerous FTD-immune pleiotropic SNPs within the human leukocyte antigen (HLA)region on chromosome 6. By leveraging the immune diseases, we also found novel FTD susceptibility loci withinLRRK2(Leucine Rich Repeat Kinase 2), TBKBP1(TANK-binding kinase 1 Binding Protein 1), andPGBD5(PiggyBac Transposable Element Derived 5). Functionally, we found that expression of FTD-immune pleiotropic genes (particularly within theHLAregion) is altered in postmortem brain tissue from patients with frontotemporal dementia and is enriched in microglia compared to other central nervous system (CNS) cell types.ConclusionsWe show considerable immune-mediated genetic enrichment specifically in FTD, particularly within theHLAregion. Our genetic results suggest that for a subset of patients, immune dysfunction may contribute to risk for FTD. These findings have potential implications for clinical trials targeting immune dysfunction in patients with FTD.

Published
2017

7. Functional brain mapping of visual mental imagery in children

Author

Pugliese, M., Gaillard, W. D., Basso, G., Braniecki, S. H., Xu, B., Balsamo, L. M., Paolo Nichelli, Cavazzuti, G. B., Grafman, J., Theodore, W. H., Pugliese, M, Gaillard, W, Basso, G, Braniecki, S, Xu, B, Balsamo, L, Nichelli, P, Cavazzuti, G, Grafman, J, and Theodore, W

Subjects
mental imagery, brain mapping, fMRI, children

8. Word frequency monitoring in Parkinson disease: An analysis of accuracy and precision

Author

Nichelli, P., ILDEBRANDO APPOLLONIO, Clark, K., Grafman, J., Nichelli, P, Appollonio, I, Clark, K, and Grafman, J

Subjects
MED/26 - NEUROLOGIA, M-PSI/02 - PSICOBIOLOGIA E PSICOLOGIA FISIOLOGICA, Parkinson's disease, language, fluency, memory, judgment of frequency, automatic encoding
Abstract

The judgment of frequency of occurrence of stimuli appearing in a task is a complicated decision. This decision can be independently analyzed using estimates of subject accuracy (where their estimate resembles the true frequency of the stimuli) and precision (sensitive to response bias). In this study, the accuracy and precision of Parkison's disease (PD) patients estimates of the frequency of occurrence of word stimuli were analyzed. The results indicated that the accuracy estimates of PD patients were not significantly different from normal controls whereas their precision of frequency judgments was impaired. Poorer precision scores were associated with fewer categories achieved on the Wisconsin Card Sorting Test. Using accuracy and precision estimates should improve the characterization of the cognitive processes required in frequency judgments.

12. Determinants of Survival in Autopsy-Confirmed Patients with Behavioral Variant Frontotemporal Dementia (bvFTD)

Author

Rascovsky, K., Hodges, J. R., Knopman, D., Mendez, M. F., Kramer, J. H., Xie, S., Swieten, J. C., Seelaar, H., Dopper, E. G. P., Onyike, C. U., Hillis, A., Josephs, K. A., Boeve, B. F., Kertesz, A., Seeley, W. W., Rankin, K., Johnson, J. K., Gorno-Tempini, M. L., Rosen, H., Neuhaus, J., Latham, C., Lee, A. S., Kipps, C. M., Lillo, P., Piguet, O., Rohrer, J. D., Rossor, M., Warren, J. D., Fox, N. C., Galasko, D., Salmon, D. P., Black, S. E., Mesulam, M., Weintraub, S., Dickerson, B. C., Diehl-Schmid, J., Florence Pasquier, Deramecourt, V., Lebert, F., Pijnenburg, Y., Chow, T., Manes, F., Grafman, J., Cappa, S. F., Freedman, M., Miller, B. L., and Grossman, M.

14. Genetic analysis suggests lysosomal and immune system involvement in frontotemporal dementia

Author

Ferrari, R., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Brooks, W. S., Eld, P. R. Schofi, Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Haan, E., Hernandez, I., Ruiz, A., Boada, M., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Clarimon, J., Lleo, A., Blesa, R., Waldoe, M. Landqvist, Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G., Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Ths, T. D. Griffi, Mckeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Pastor, P., Razquin, C., Ortega-Cubero, S., Alonso, E., Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rubino, I. Rainero E., Pinessi, L., Rogaeva, E., St George-Hyslop, P., Rossi, G., Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Mead, S., Danek, A., Deerlin, V. M., Grossman, M., Trojanowski, J. Q., Zee, J., Deschamps, W., Langenhove, T., Cruts, M., Broeckhoven, C., Cappa, S. F., Le Ber, I., Hannequin, D., Golfier, V., Vercelletto, M., Alexis Brice, Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Heutink, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Rademakers, R., Baker, M., Dickson, D. W., Graff-Radford, N. R., Petersen, R. C., Knopman, D., Josephs, K. A., Boeve, B. F., Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., Swieten, J. C., Dopper, E. G. P., Seelaar, H., Pijnenburg, Y. A., Scheltens, P., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H. H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebert, F., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Hardy, J., Momeni, P., and Singleton, A. B.

15. Genetic variation across RNA metabolism and cell death gene networks is implicated in the semantic variant of primary progressive aphasia

Author

Bonham, Luke W., Steele, Natasha Z. R., Karch, Celeste M., Broce, Iris, Geier, Ethan G., Wen, Natalie L., Momeni, Parastoo, Hardy, John, Miller, Zachary A., Gorno-Tempini, Maria Luisa, Hess, Christopher P., Lewis, Patrick, Miller, Bruce L., Seeley, William W., Manzoni, Claudia, Desikan, Rahul S., Baranzini, Sergio E., Ferrari, Raffaele, Yokoyama, Jennifer S., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Haan, E., Hernández, I., Ruiz, A., Boada, M., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Clarimón, J., Lleó, A., Blesa, R., Landqvist Waldö, M., Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G. -Y. R., Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Griffiths, T. D., McKeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Pastor, P., Razquin, C., Ortega-Cubero, S., Alonso, E., Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rainero, I., Rubino, E., Pinessi, L., Rogaeva, E., St George-Hyslop, P., Rossi, G., Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Mead, S., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., Van Der Zee, J., Cruts, M., Van Broeckhoven, C., Cappa, S. F., Leber, I., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Heutink, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Rademakers, R., Baker, M., Dickson, D. W., Graff-Radford, N. R., Petersen, R. C., Knopman, D., Josephs, K. A., Boeve, B. F., Parisi, J. E., Karydas, A. M., Rosen, H., Van Swieten, J. C., Dopper, E. G. P., Seelaar, H., Pijnenburg, Y. A. L., Scheltens, P., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H. -H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., and Singleton, A. B.

Subjects
631/208/199, 692/617/375/132, 692/617/375/365, article, 38/39, 631/208/205, 3. Good health
Abstract

The semantic variant of primary progressive aphasia (svPPA) is a clinical syndrome characterized by neurodegeneration and progressive loss of semantic knowledge. Unlike many other forms of frontotemporal lobar degeneration (FTLD), svPPA has a highly consistent underlying pathology composed of TDP-43 (a regulator of RNA and DNA transcription metabolism). Previous genetic studies of svPPA are limited by small sample sizes and a paucity of common risk variants. Despite this, svPPA’s relatively homogenous clinicopathologic phenotype makes it an ideal investigative model to examine genetic processes that may drive neurodegenerative disease. In this study, we used GWAS metadata, tissue samples from pathologically confirmed frontotemporal lobar degeneration, and in silico techniques to identify and characterize protein interaction networks associated with svPPA risk. We identified 64 svPPA risk genes that interact at the protein level. The protein pathways represented in this svPPA gene network are critical regulators of RNA metabolism and cell death, such as SMAD proteins and NOTCH1. Many of the genes in this network are involved in TDP-43 metabolism. Contrary to the conventional notion that svPPA is a clinical syndrome with few genetic risk factors, our analyses show that svPPA risk is complex and polygenic in nature. Risk for svPPA is likely driven by multiple common variants in genes interacting with TDP-43, along with cell death,x` working in combination to promote neurodegeneration.

17. Distributed neural systems for temporal production: a functional MRI study

Author

Paolo Frigio Nichelli, Gianpaolo Basso, Matthew M. Peterson, Jordan Grafman, C. M. Wharton, Basso, G, Nichelli, P, Wharton, C, Peterson, M, and Grafman, J

Subjects
Adult, Male, Posterior parietal cortex, Prefrontal Cortex, Motor Activity, Brain mapping, temporal percpetion, Parietal Lobe, Neural Pathways, medicine, Humans, Short-term memory, Prefrontal cortex, Functional MRI, Brain Mapping, Neuroscience (all), medicine.diagnostic_test, Working memory, General Neuroscience, Parietal lobe, Inferior parietal lobule, Time perception, Magnetic Resonance Imaging, Memory, Short-Term, Time Perception, Time production, Occipital Lobe, Psychology, Functional magnetic resonance imaging, Occipital lobe, Neuroscience, Photic Stimulation
Abstract

Using functional magnetic resonance imaging (fMRI), we investigated the neural substrates for computing time intervals. Five right-handed males were asked to judge if a digit probe belonged to a string of digits presented immediately before but to provide their response only after 1.5s had elapsed. This time estimation condition, compared with control working memory and motor tasks, was associated with increased activity in the middle occipital gyri, in the right inferior parietal lobe, and bilaterally in the prefrontal cortex. We argue that activity elicited in the occipital lobe provides duration information about visual stimuli that can be quantified at the level of the inferior parietal lobe. Comparison with time reference information depends on the bilateral prefrontal cortex. © 2002 Elsevier Science Inc. All rights reserved

Published
2003

18. The calculating brain: an fMRI study

Author

Jordan Grafman, Gianpaolo Basso, Timothy C. Rickard, C. M. Wharton, S. S. Flitman, S. G. Romero, Rickard, T, Romero, S, Basso, G, Wharton, C, Flitman, S, and Grafman, J

Subjects
Adult, Male, Cognitive Neuroscience, Math, Posterior parietal cortex, Experimental and Cognitive Psychology, Cognitive neuroscience, Behavioral neuroscience, behavioral disciplines and activities, Task (project management), Behavioral Neuroscience, Cognition, Mental Processes, Basal ganglia, Reaction Time, medicine, Humans, Brain Mapping, Arithmetic, fMRI, Brain, Magnetic Resonance Imaging, Functional imaging, Dorsolateral prefrontal cortex, medicine.anatomical_structure, nervous system, Female, Psychology, Number processing, Neuroscience, Mathematics, Photic Stimulation, Psychomotor Performance, psychological phenomena and processes
Abstract

To explore brain areas involved in basic numerical computation, functional magnetic imaging (fMRI) scanning was performed on college students during performance of three tasks; simple arithmetic, numerical magnitude judgment, and a perceptual-motor control task. For the arithmetic relative to the other tasks, results for all eight subjects revealed bilateral activation in Brodmann's area 44, in dorsolateral prefrontal cortex (areas 9 and 10), in inferior and superior parietal areas, and in lingual and fusiform gyri. Activation was stronger on the left for all subjects, but only at Brodmann's area 44 and the parietal cortices. No activation was observed in the arithmetic task in several other areas previously implicated for arithmetic, including the angular and supramarginal gyri and the basal ganglia. In fact, angular and supramarginal gyri were significantly deactivated by the verification task relative to both the magnitude judgment and control tasks for every subject. Areas activated by the magnitude task relative to the control were more variable, but in five subjects included bilateral inferior parietal cortex. These results confirm some existing hypotheses regarding the neural basis of numerical processes, invite revision of others, and suggest productive lines for future investigation. Copyright (C) 1999.

Published
2000

20. Response of human-immunodeficiency-virus-associated neurological disease to 3'-azido-3'-deoxythymidine

Author

Peter J. Schmidt, A. Robert Spitzer, Steven M. Larson, Robert Yarchoan, Rose V. Thomas, Charles E. Myers, Bijan Safai, Pim Brouwers, Jordan Grafman, G. Berg, Alison Wichman, Arturo Brunetti, Carlo Federico Perno, Margaret A. Fischl, Samuel Broder, Yarchoan, R, Berg, G, Brouwers, P, Fischl, Ma, Spitzer, Ar, Wichman, A, Grafman, J, Thomas, Rv, Safai, B, and Brunetti, Arturo

Subjects
Adult, Male, medicine.medical_specialty, viruses, medicine.medical_treatment, Physical examination, Disease, Gastroenterology, Zidovudine, Internal medicine, medicine, Dementia, Humans, Chemotherapy, Acquired Immunodeficiency Syndrome, Brain Diseases, medicine.diagnostic_test, business.industry, General Medicine, Middle Aged, medicine.disease, Surgery, Peripheral neuropathy, Viral disease, Nervous System Diseases, business, Paraplegia, medicine.drug, Thymidine
Abstract

Four patients with human-immunodeficiency-virus-associated neurological disease were treated with 3'-azido-3'-deoxythymidine (AZT). Three (two with chronic dementia, and one with chronic dementia and peripheral neuropathy) improved as assessed by clinical examination, psychometric tests, nerve conduction studies, and/or positron emission tomography; there was no improvement in the fourth patient who presented with paraplegia. These results support the hypothesis that certain AIDS-virus-associated neurological abnormalities are reversible by antiretroviral chemotherapy.

Published
1987

21. Neurofunctional correlates of language reorganization after massive hemisphere stroke

Author

Pélagie M. Beeson, S. Rapczack, Gianpaolo Basso, Stephen G. Romero, Pietro Pietrini, Jordan Grafman, Basso, G, Romero, S, Pietrini, P, Beeson, P, Rapczack, S, and Grafman, J

Subjects
Neurology, language, brain plasticity, fMRI, stroke, Cognitive Neuroscience, medicine, Psychology, medicine.disease, Stroke, Cognitive psychology

22. Implicit and explicit memory in patients with Parkinson's disease with and without dementia

Author

Jordan Grafman, Paolo Frigio Nichelli, Mark Hallett, Thomas A. Zeffiro, Ildebrando Appollonio, K Clark, Appollonio, I, Grafman, J, Clark, K, Nichelli, P, Zeffiro, T, and Hallett, M

Subjects
Male, medicine.medical_specialty, Parkinson's disease, Audiology, Neuropsychological Tests, M-PSI/02 - PSICOBIOLOGIA E PSICOLOGIA FISIOLOGICA, Cue, Developmental psychology, Arts and Humanities (miscellaneous), Memory, Explicit memory, medicine, Dementia, Humans, Association (psychology), Aged, MED/26 - NEUROLOGIA, Analysis of Variance, medicine.diagnostic_test, Parkinson Disease, Neuropsychological test, Middle Aged, medicine.disease, Mood, Free recall, Mental Recall, Neuropsychological Test, Female, Neurology (clinical), Implicit memory, Cues, Psychology, Human
Abstract

Objective: To study explicit and implicit memory processes in patients with Parkinson's disease. Design: Case-control design. All subjects were given a neuropsychological test battery, and the test scores were compared among the groups. Setting: Government-funded research facility. All subjects were examined as outpatients. Patients: We tested nondemented (n=13) and demented (n=5) patients with Parkinson's disease and normal controls (n=12) matched for age, gender, and educational level. Main Outcome Measures: Memory for verbal and pictorial stimuli under both explicit and implicit retrieval conditions. Results: Both nondemented and demented patients with Parkinson's disease exhibited impairment on tests of explicit memory. Their impairment could be graded based on the level of effort required by the task: impaired free recall in nondemented patients and impaired free recall, cued recall, and recognition in demented patients. By contrast, neither group showed evidence of impairment on automatic (modality monitoring and word frequency estimation) or implicit (word and picture fragment identification) memory tasks. Correlation analyses did not support any association between the effortful memory deficits and neurologic variables, mood, or performance on executive function tests. Conclusions: Memory deficits in patients with Parkinson's disease primarily involve the conscious, effortful strategic aspects of searching long-term memory.

25. The cerebral basis of time perception: A fMRI Study

Author

Nichrlli, P., Basso, G., Jordan H. Grafman, Wharton, C. M., Feterson, M., Nichelli, P, Basso, G, Grafman, J, Wharton, C, and Feterson, M

Subjects
fMRI, time perception, brain
Abstract

In this study we have addressed the issue of the structures involved in time estimation using fMRI. Five right handed male subjects were trained to perform three tasks. 1) Working memory: an array of five digits was displayed. After a 1300 delay a single digit probe appeared and the subject was to signal whether or not the probe was included in the array; 2) Temporal production: an array of five digits was displayed, the probe appeared immediately afterwards but the subject was to provide his response only after a delay of 1500 ms; 3) Control: the subject was to respond depending on the side of a capital X in an array of lower case x. For each subject, a total of 720 volumes were acquired during 12 consecutive scans with a gradient echo EPI sequence (TR=3 s, TE=40, 64x64 matrix) on a GE Signa 1.5 T machine. Data were analyzed using SPM95 software. Temporal production was associated in 4/5 subjects with bilateral activation in the middle and in the inferior occipital gyrus (BA 18, 19). In one subject the same areas were activated only on the left side. Inferior parietal lobule (BA 40) and prefrontal areas (BA 10) were bilaterally activated in four subjects. We hypothesize that extrastriatc cortex and inferior parietal cortex can monitor the duration of visual stimuli. We suggest thai the physiological correlates of prospective time estimation might relay on different areas depending on stimulus characteristic and response modality

26. No specific effects of caloric stimulation on the visual-imagery processes of normal subjects

Author

Jordan Grafman, L. I. Shotland, Ildebrando Appollonio, David Alway, Paolo Frigio Nichelli, Alway, D, Shotland, L, Nichelli, P, Appollonio, I, and Grafman, J

Subjects
Adult, Male, medicine.medical_specialty, media_common.quotation_subject, Experimental and Cognitive Psychology, MED/31 - OTORINOLARINGOIATRIA, Audiology, M-PSI/02 - PSICOBIOLOGIA E PSICOLOGIA FISIOLOGICA, 050105 experimental psychology, Neglect, Developmental psychology, 03 medical and health sciences, 0302 clinical medicine, Reference Values, Orientation, Caloric Tests, medicine, Reaction Time, Humans, 0501 psychology and cognitive sciences, Reference Value, Attention, Caloric stimulation, Dominance, Cerebral, media_common, MED/26 - NEUROLOGIA, 05 social sciences, Contralateral hemisphere, Caloric theory, 030229 sport sciences, Sensory Systems, Pattern Recognition, Visual, Mental Recall, Imagination, Visual Perception, Female, Psychology, Psychomotor Performance, Mental image, Human, Caloric Test, Psychophysiology
Abstract

Recent research indicates that neglect can be temporarily, but only partially, ameliorated by activating the contralateral hemisphere via caloric stimulation and other techniques. In this study, we evaluated whether caloric srimulation could be used to manipulate visual-imagery processes in normal subjects. 11 normal subjects participated in a quantitative visual-imagery task while undergoing caloric stimulation. Neither side of report nor ear of caloric stimulation affected performance. Possible reasons for this negative result are reviewed.

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